20955732

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 57494304

約数和(自身を除く): 36538572

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 157, 196, 227, 294, 314, 454, 471, 588, 628, 681, 908, 942, 1099, 1362, 1589, 1884, 2198, 2724, 3178, 3297, 4396, 4767, 6356, 6594, 7693, 9534, 11123, 13188, 15386, 19068, 22246, 23079, 30772, 33369, 35639, 44492, 46158, 66738, 71278, 92316, 106917, 133476, 142556, 213834, 249473, 427668, 498946, 748419, 997892, 1496838, 1746311, 2993676, 3492622, 5238933, 6985244, 10477866, 20955732]

約数ペア:

[(1, 20955732), (2, 10477866), (3, 6985244), (4, 5238933), (6, 3492622), (7, 2993676), (12, 1746311), (14, 1496838), (21, 997892), (28, 748419), (42, 498946), (49, 427668), (84, 249473), (98, 213834), (147, 142556), (157, 133476), (196, 106917), (227, 92316), (294, 71278), (314, 66738), (454, 46158), (471, 44492), (588, 35639), (628, 33369), (681, 30772), (908, 23079), (942, 22246), (1099, 19068), (1362, 15386), (1589, 13188), (1884, 11123), (2198, 9534), (2724, 7693), (3178, 6594), (3297, 6356), (4396, 4767)]